(See major companies that do.) However, Apple does hire for work-at-home positions in at least one division, its AppleCare support team. Most of its home-based customer service jobs, called Apple At-Home Advisors, are virtual call center positions; however there are also separate chat agent positions.
Stress fractures heal with time and rest. Athletes are advised to rest from any activity that caused the stress fracture for the 6-14 weeks that the fractures take to heal (ask your doctor how long your particular fracture will probably take to heal), or until pain-free for 2-3 weeks.
When you work out, you accelerate that natural progress causing your body to (re)build muscle in as little as 24 hours, although it can take up to 72 hours for a muscle to fully recover depending on the level of stress and break-down you've subjected it to.